www.wasser-waerme.ch

Issued by R3

About this certificate

This digital certificate with serial number 04:38:00:0d:16:a7:90:e6:79:77:ac:8a:a6:12:97:b1:b9:1f was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=www.wasser-waerme.ch

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:38:00:0d:16:a7:90:e6:79:77:ac:8a:a6:12:97:b1:b9:1f
Serial Number (int): 367505024233961660381389365586648468928799
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 6b:88:cd:a3:7c:3d:21:c4:24:6c:c1:ac:00:a6:1c:c5:7b:ab:d1:5b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 70:87:fa:87:15:0a:63:40:3f:fc:bd:e1:3b:99:25:35:b2:c9:df:5e
Fingerprint (sha256): d5:61:7d:7b:10:dc:ed:44:64:ab:38:bd:f8:95:71:04:9e:7c:2e:a8:d8:b5:42:f7:6a:9a:1b:32:a9:ee:aa:30

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.wasser-waerme.ch

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.wasser-waerme.ch

Public Key Algorithm

RSA

Key Size

4096

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

wasser-waerme.ch
www.wasser-waerme.ch

Other certificates including the domain name wasser-waerme.ch

(limited to 100 certificates)
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
www.wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch
wasser-waerme.ch

Certificate

The complete raw certificate details for www.wasser-waerme.ch in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 367505024233961660381389365586648468928799
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-04 10:23:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-03 10:23:01 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.wasser-waerme.ch'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 736921553857538465006876181221386472886324632073799174619089902897541825614822451102450160589591065206575424529576297615244483310585628630980464188420977725621364100484086243243632033167189980796499949925662609111809910106287574158107677851308803734690890580677428438818113548854913284305049801938468300684210316733006873940828841153561756808375135904685331254850255881751477937659633056236753458877315753967952273247619618765725181462653747089780967244084173591056164209397530179896304100018034545905656687667226432220196039584415926893967588782429388055391536643106591081589175463316373694907896137539903302659569697140144653193310486815664018203344756541152181306980664240614950388994162379039121672168691515603207547172944368110670675939334439402877664605601916543399088046275937587052193190766562391488760863671481553703591511229244617489008717199753135938496777059337087820705231435818511364415072871361391142862145678216780216334555320404521411204498532910110065238594701030470005049130115769360693823694149811337416279504812796321862634550930597877913272643701811280033478628744033820539163977691433608529321596627876222893706393365545643609070143386208907182904138856365638911246948932851937696910522182665051119254270598087
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							6b88cda37c3d21c4246cc1ac00a61cc57babd15b
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wasser-waerme.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.wasser-waerme.ch'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c34913d1600000403004730450220075f93d503253be4fb4270b076c6972e5c134e3c66717d319aa2b97c99fe34b2022100fbcfec2dcda933f7189a16ea9b93a94a11821f364ce5fcbca34204066628f697007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018c34913d2e0000040300473045022100bf09cf6ec327620db183745697d94ca2887d1b6a7450501fa2d05a99a1b968c202202e721d12941403f686148cbc8ceae7fc68e51ae941560466048d894df2a3f60d
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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